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The Bruce Murray Space Image Library

Carbon dioxide snow and water ice snow, compared

Carbon dioxide snow and water ice snow, compared

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Carbon dioxide snow and water ice snow, compared
What does a Martian snowflake look like? As seen by Earth-based experimenters, carbon dioxide crystals have a "cuboctahedral" shape – cubes with the corners cut off. These particles are much smaller (about 100x smaller) than terrestrial water snow, and lack their intricate symmetry and platy structure.

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